<html class="reftest-wait">
<head>
<title>BC crash</title>
<script>
function doit() {
  var C = document.getElementById('C'); 
  var newNode = document.createElement('td'); 
  newNode.setAttribute('id', 'D'); 
  C.insertBefore(newNode, document.getElementById('B')); 
  var D = document.getElementById('D'); 
  D.parentNode.removeChild(D);  
  var A = document.getElementById('A'); 
  A.parentNode.removeChild(A);  
  document.documentElement.removeAttribute("class");
}
</script>
</head>


<body onload="doit()">
<table style="border-collapse: collapse">
  <tbody>
   <tr id="C">
     <th id="B"></th>
   </tr>
   <tr>
    <td id="A" colspan="2"></th>
   </tr>
   <tbody><tr><th></th></tr></tbody>

</table>
</body>
</html>
